Windows authentication loop

[jpboudreauforces]

The windows authentication does not seems to be working on last 4.x version. It was working before on 3.x.

Issue / Steps to reproduce the problem

Create a new Identity Server with the quickstart UI
dotnet new is4empty -n IdentityServer cd IdentityServer dotnet new is4ui

In the ConfigureService function of startup.cs add
services.Configure<IISServerOptions>(iis => { iis.AuthenticationDisplayName = "Windows"; iis.AutomaticAuthentication = false; });

Publish on IIS (in-process, with anonymous, windows auth enabled, default app pool) and go to a client app or on the quickstart UI to manage grant and log in with Windows as External Provider.
The Authentication window popup and keep popping up in an infinite loop.

Relevant parts of the log file

Nothing is shown in the log.

[leastprivilege]

Windows authentication is not a feature of IdentityServer, but of ASP.NET Core.

Did you follow the docs?
https://identityserver4.readthedocs.io/en/latest/topics/windows.html

[stale]

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[github-actions]

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